LonCallen of Boulder formerly of Wichita, KS passed away January 29, 2017 in Boulder. He was 87. He was born 1929 in Kingman, Kansas to Cleo Paul and Josephine Callen. He received his B.A. Degree in math and physics. Lon served in the U.S. Air Force for 20 years retiring as a Lt. Col. While in the Air Force he received the Decorated Joint Service Commendation Medal. He then worked for the City of Boulder as Emergency Director. He married his wife Barbara on October 12, 1955 in Denver. He was a member of New York Academy of Science, Association Advancement of Science, Federation of American Scientists, National Association of Atomic Veterans, and Retired Officers Association. Lon enjoyed Quantum Mechanics, math, physics, and astronomy. He is survived by his wife Barbara, son LonCallen Jr. and daughter Lynn Callen Curtis, eight grandchildren Brandon, Courtney, Brittany, Sean Marie, Ben Alex, Cal and Matthew: eight great grandchildren; Drew, Sienna, Colin, Bridget, Natalie, Vivian, Scarlett, Noel. He is preceded in death by Kathleen Todd and D.R. Callen. A memorial service will be held on Saturday Feb. 4, 2017 at 2pm at Crist Mortuary 3395 Penrose Pl. Boulder. Memorial contributions may be made to Imagine or Make a Wish Foundation. To send condolences please go to www.cristmortuary.com. Arrangements under the direction of Crist Mortuary, Boulder, CO.

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